CN111010803A

CN111010803A - Optimization method of white oil block processing flow

Info

Publication number: CN111010803A
Application number: CN201911290662.6A
Authority: CN
Inventors: 李白艳; 刘佳; 邱醒亚
Original assignee: Shenzhen Fastprint Circuit Tech Co Ltd; Guangzhou Fastprint Circuit Technology Co Ltd
Current assignee: Shenzhen Fastprint Circuit Tech Co Ltd; Guangzhou Fastprint Circuit Technology Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-04-14
Anticipated expiration: 2039-12-16
Also published as: CN111010803B

Abstract

The invention discloses an optimization method of a white oil block processing flow, and relates to the field of PCBs. The method comprises the following steps: making a character file; making a white oil block file meeting preset conditions; printing characters and white oil blocks to a place corresponding to the PCB by using a PCB printer according to the character file and the white oil block file; and carrying out silk-screen printing on the white oil blocks. The invention prints characters and white oil blocks by adopting a PCB printer printing mode, does not need to wait for solder resist ink solidification, and shortens the production period.

Description

Optimization method of white oil block processing flow

Technical Field

The invention relates to the technical field of PCB manufacturing, in particular to an optimization method of a white oil block processing flow.

Background

With the rapid development of electronic products, in the production process of PCBs, customers often require printing of a white oil block for laser engraving of bar codes on the PCB. However, in the prior art, the characters and the white oil blocks are printed by silk screen only after the solder resist ink is solidified, and the production period is long.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an optimization method of the white oil block processing flow, which can reduce the production period and save the cost.

One embodiment of the invention provides an optimization method of a white oil block processing flow, which is applied to a PCB (printed circuit board), wherein the PCB comprises a white oil block for laser engraving characters, and the method comprises the following steps:

making a character file;

making a white oil block file;

printing characters to a place corresponding to the PCB by using a PCB printer according to the character file;

and carrying out silk-screen printing on the white oil blocks according to the white oil block file.

The optimization method of the white oil block processing flow of the embodiment of the invention at least has the following beneficial effects: characters are printed by adopting a PCB printer printing mode, solder resist ink solidification does not need to be waited, and the production period is shortened.

According to another embodiment of the present invention, in the method for optimizing the processing flow of white oil cake, the thickness of the white oil cake is between 20 to 50 um.

Drawings

FIG. 1 is a schematic flow chart of an embodiment of a method for optimizing a white oil cake processing flow according to the present invention;

fig. 2 is a schematic structural diagram of characters and white oil blocks of a PCB board in an embodiment of the present invention.

Detailed Description

The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.

In the description of the present invention, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. If a feature is referred to as being "disposed," "secured," "connected," or "mounted" to another feature, it can be directly disposed, secured, or connected to the other feature or indirectly disposed, secured, connected, or mounted to the other feature.

In the description of the embodiments of the present invention, if "a number" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "greater than", "lower" or "inner" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

In the prior art, the processing flow of the white oil block is as follows: and after the solder resist developing process operation is finished, performing silk-screen character printing. Firstly, silk-screen printing is carried out on characters and white oil blocks on the PCB, and then the positions of the white oil blocks are printed again (because the positions of the white oil blocks have the requirements of thickness and flatness, the characters and the white oil blocks are printed again independently). In the first silk-screen printing process, the positions of the white oil blocks are printed together. The position of the white oil block is printed again for the second time. Therefore, only manual silk-screen printing is available. The manual silk-screen printing efficiency is low, the quality cannot be controlled, characters can be silk-screen printed after solder resist ink is solidified, and the production period is prolonged due to the solidification time.

Based on the prior art, the basic concept of the invention is as follows: after the solder resist development process operation is finished, characters are printed in a PCB printing mode (the printing mode does not include the position of the white oil block, and the white oil block is automatically printed, so that the quality problem can be caused), and solder resist ink solidification is not required. And after the characters are printed, independently carrying out manual silk-screen printing on the white oil blocks. The time for waiting for the ink to be cured is reduced, so that the production period is greatly shortened.

Example one

Referring to fig. 1, a flow diagram of the optimization method of the white oil cake processing flow in this embodiment is shown. The method comprises the following steps:

s100, making a character file;

s200, making a white oil block file;

s300, printing characters to a position corresponding to a PCB (printed Circuit Board) by using a PCB printer according to the character file;

and S400, performing silk-screen printing on the white oil blocks according to the white oil block file.

In this embodiment, a character file (excluding a white oil block file) is first created in the PCB drawing software, and then a white oil block file is created, when the white oil block file is created, a white oil block with a size of 8 × 8mm or more needs to be added to the edge of the PNL board (when the edge of the PNL board is printed on a printed circuit board, the edge of the process board processed by the delivery unit is usually used to add positioning holes, alignment targets, positioning silk-screen marks, etc.), so that the first piece can confirm the thickness of the ink. And (3) a remark printing mode on a remark column: printing, whether high flatness is required: the minimum ink thickness requirement is: 20 um. And then printing characters and white oil blocks to the corresponding positions of the PCB by using a PCB printer. After printing, the white oil block is subjected to manual silk-screen printing so as to meet the requirements of thickness and flatness.

Referring to fig. 2, a schematic structural diagram of characters and white oil blocks of the PCB in the present embodiment is shown. Wherein, R86, C97 and TP6 (only three characters are drawn as an example in the figure) are characters printed on the PCB board for marking the components to be soldered at the position.

In this embodiment, the thickness of the white oil block is 20-50 um.

In this embodiment, the white oil block can be disposed near the edge of the PCB for laser etching characters or bar codes, and can also be disposed at other positions on the PCB.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims

1. A method for optimizing a white oil block processing flow is applied to a PCB (printed Circuit Board), the PCB comprises a white oil block for laser etching characters, and the method comprises the following steps:

making a character file;

making a white oil block file;

2. The method for optimizing a white oil cake processing flow according to claim 1, wherein the thickness of the white oil cake is between 20 and 50 um.